The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Samyang 100mm F2.8 Macro and the Venus 100mm F2.8 2X Ultra Macro for their suitability to various photography scenarios:
Size and Weight Comparison
Size of a lens is an important deciding factor when comparing two lenses.Venus 100mm F2.8 2X Ultra Macro is the longer of the two lenses at 125mm. The Samyang 100mm F2.8 Macro with a length of 123mm is 2mm shorter. On the other hand, the Samyang 100mm F2.8 Macro has a larger diameter of 73mm compared to Venus 100mm F2.8 2X Ultra Macro's 72mm diameter.
Below you can find the scaled side by side image of Samyang 100mm F2.8 Macro and Venus 100mm F2.8 2X Ultra Macro to get a better idea of how their size compare in real life.
Comparison image of Samyang 100mm F2.8 Macro and Venus 100mm F2.8 2X Ultra Macro Size and Weight Weight of a lens is as important as its external dimensions, especially if you are planning to hand hold your camera and lens combination for longer periods. Venus 100mm F2.8 2X Ultra Macro weighs 638g, 11% (82g) lighter than the Samyang 100mm F2.8 Macro's weight of 720g.
Lens Mounts
Both Samyang 100mm F2.8 Macro and Venus 100mm F2.8 2X Ultra Macro has the same Canon EF lens mount. Some of the latest released cameras that are compatible with the Canon EF lenses are Canon 1D X III, Canon 6D MII and Canon 5D MIV.
Samyang 100mm F2.8 Macro is also available in Fujifilm X , Micro Four Thirds, Nikon F (FX), Pentax KAF, Samsung NX, Sony Alpha and Sony E mounts.
Venus 100mm F2.8 2X Ultra Macro is also available in Nikon F (FX) , Pentax KAF2 and Sony E mounts.
Focal Range
Both lenses have the same focal range of 100mm and the fastest aperture of F2.8.